I am unable to plot a graph and it does not let me execute

Good afternoon, my name is Benjamin Gonzalez Jr.
I need help on how to graph -4sin(2x-pi) on cocalc/sage. I tried everything I could but unfortunately I wasn't able to. I need to plot it and figure out x mins, xmax, etc...... also amplitude, phase, period, midpoint, etc. Thanks you so much! Please answer as soon as possible. Thanks!